Dr. Khaled Ramadan Mohamed received his B.Sc. from the Higher Institute of Engineering (El-Shorouk Academy) in 2011, and his M.Sc. and Ph.D. from the Faculty of Electronic Engineering, Menoufia University, Menouf, Egypt, in 2018 and 2021, respectively. He joined the teaching staff of the Department of Electronics and Electrical Communications at the Higher Institute of Engineering in Al-Shorouk City, Egypt, in 2021. He uploaded many online courses to the Udemy site, and hundreds of students from several tenths of countries around the world enrolled in the courses, with positive feedback on each course. He has published several scientific papers in national and international conference proceedings and journals. He has received the most read paper from the International Journal of Communication Systems (IJCS) for 2018–2019. His research interests include multicarrier communication systems, Multiple-Input Multiple-Output (MIMO) systems, Digital Signal Processing (DSP), digital communications, channel equalization, Carrier Frequency Offsets (CFOs) estimations and compensations, Underwater Acoustic (UWA) wireless communication systems, and multicarrier Non-Orthogonal Multiple Access (NOMA) for 5G networks.